Answer:
0.451
Step-by-step explanation:
When you do cos^-1 0.9 ~ .451
You can’t add pi because you have an interval.
Hope this helps :)
If you move the decimal point the same number of places in the dividend and the divisor, you are multiplying them both by the same power of 10. That does not change the quotient.
Quadrilateral the word that describe the equal share of 4 equal sides
